package br.pucrio.inf.les.genarch.models.configuration.presentation;

import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.EventObject;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IMarker;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.IResourceChangeEvent;
import org.eclipse.core.resources.IResourceChangeListener;
import org.eclipse.core.resources.IResourceDelta;
import org.eclipse.core.resources.IResourceDeltaVisitor;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.core.runtime.Path;
import org.eclipse.emf.common.command.BasicCommandStack;
import org.eclipse.emf.common.command.Command;
import org.eclipse.emf.common.command.CommandStack;
import org.eclipse.emf.common.command.CommandStackListener;
import org.eclipse.emf.common.notify.AdapterFactory;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.ui.MarkerHelper;
import org.eclipse.emf.common.ui.ViewerPane;
import org.eclipse.emf.common.ui.editor.ProblemEditorPart;
import org.eclipse.emf.common.ui.viewer.IViewerProvider;
import org.eclipse.emf.common.util.BasicDiagnostic;
import org.eclipse.emf.common.util.Diagnostic;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EValidator;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.eclipse.emf.ecore.util.EContentAdapter;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.emf.edit.domain.AdapterFactoryEditingDomain;
import org.eclipse.emf.edit.domain.EditingDomain;
import org.eclipse.emf.edit.domain.IEditingDomainProvider;
import org.eclipse.emf.edit.provider.AdapterFactoryItemDelegator;
import org.eclipse.emf.edit.provider.ComposedAdapterFactory;
import org.eclipse.emf.edit.provider.ReflectiveItemProviderAdapterFactory;
import org.eclipse.emf.edit.provider.resource.ResourceItemProviderAdapterFactory;
import org.eclipse.emf.edit.ui.action.EditingDomainActionBarContributor;
import org.eclipse.emf.edit.ui.celleditor.AdapterFactoryTreeEditor;
import org.eclipse.emf.edit.ui.provider.AdapterFactoryContentProvider;
import org.eclipse.emf.edit.ui.provider.AdapterFactoryLabelProvider;
import org.eclipse.emf.edit.ui.util.EditUIMarkerHelper;
import org.eclipse.emf.edit.ui.view.ExtendedPropertySheetPage;
import org.eclipse.jface.action.IMenuListener;
import org.eclipse.jface.action.IMenuManager;
import org.eclipse.jface.action.IStatusLineManager;
import org.eclipse.jface.action.IToolBarManager;
import org.eclipse.jface.action.MenuManager;
import org.eclipse.jface.action.Separator;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.dialogs.ProgressMonitorDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.ISelectionProvider;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.ListViewer;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.viewers.StructuredViewer;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CTabFolder;
import org.eclipse.swt.events.ControlAdapter;
import org.eclipse.swt.events.ControlEvent;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.Tree;
import org.eclipse.ui.IActionBars;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IEditorSite;
import org.eclipse.ui.IFileEditorInput;
import org.eclipse.ui.IPartListener;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.actions.WorkspaceModifyOperation;
import org.eclipse.ui.dialogs.SaveAsDialog;
import org.eclipse.ui.ide.IGotoMarker;
import org.eclipse.ui.part.FileEditorInput;
import org.eclipse.ui.part.MultiPageEditorPart;
import org.eclipse.ui.views.contentoutline.ContentOutline;
import org.eclipse.ui.views.contentoutline.ContentOutlinePage;
import org.eclipse.ui.views.contentoutline.IContentOutlinePage;
import org.eclipse.ui.views.properties.IPropertySheetPage;
import org.eclipse.ui.views.properties.PropertySheet;
import org.eclipse.ui.views.properties.PropertySheetPage;

import br.pucrio.inf.les.genarch.GenarchPlugin;
import br.pucrio.inf.les.genarch.core.models.dsl.ArchitectureModelUtil;
import br.pucrio.inf.les.genarch.core.project.GenarchProjectConfigurationFile;
import br.pucrio.inf.les.genarch.core.resources.dsl.AspectAnnotationUtil;
import br.pucrio.inf.les.genarch.core.resources.dsl.JavaAnnotationUtil;
import br.pucrio.inf.les.genarch.models.configuration.Configuration;
import br.pucrio.inf.les.genarch.models.configuration.ConfigurationAspect;
import br.pucrio.inf.les.genarch.models.configuration.ConfigurationClass;
import br.pucrio.inf.les.genarch.models.configuration.ConfigurationComponent;
import br.pucrio.inf.les.genarch.models.configuration.MappingEntity;
import br.pucrio.inf.les.genarch.models.configuration.provider.ConfigurationItemProviderAdapterFactory;
import br.pucrio.inf.les.genarch.models.configuration.provider.ConfigurationMetaModelEditPlugin;
import ca.uwaterloo.gp.fmp.Project;
import ca.uwaterloo.gp.fmp.provider.nonmodel.ProxyItemProvider;
import ca.uwaterloo.gp.fmp.util.FmpExternalLoader;
import ca.uwaterloo.gp.fmp.util.FmpResourceImpl;

/**
 * This is an example of a Configuration model editor.
 * <!-- begin-user-doc -->
 * <!-- end-user-doc -->
 * @generated
 */
public class ConfigurationEditor
extends MultiPageEditorPart
implements IEditingDomainProvider, ISelectionProvider, IMenuListener, IViewerProvider, IGotoMarker {
	/**
	 * This keeps track of the editing domain that is used to track all changes to the model.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected AdapterFactoryEditingDomain editingDomain;

	/**
	 * This is the one adapter factory used for providing views of the model.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected ComposedAdapterFactory adapterFactory;

	/**
	 * This is the content outline page.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected IContentOutlinePage contentOutlinePage;

	/**
	 * This is a kludge...
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected IStatusLineManager contentOutlineStatusLineManager;

	/**
	 * This is the content outline page's viewer.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected TreeViewer contentOutlineViewer;

	/**
	 * This is the property sheet page.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected PropertySheetPage propertySheetPage;

	/**
	 * This is the viewer that shadows the selection in the content outline.
	 * The parent relation must be correctly defined for this to work.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected TreeViewer selectionViewer;

	/**
	 * This inverts the roll of parent and child in the content provider and show parents as a tree.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected TreeViewer parentViewer;

	/**
	 * This shows how a tree view works.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected TreeViewer treeViewer;

	/**
	 * This shows how a list view works.
	 * A list viewer doesn't support icons.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected ListViewer listViewer;

	/**
	 * This shows how a table view works.
	 * A table can be used as a list with icons.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected TableViewer tableViewer;

	/**
	 * This shows how a tree view with columns works.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected TreeViewer treeViewerWithColumns;

	/**
	 * This keeps track of the active viewer pane, in the book.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected ViewerPane currentViewerPane;

	/**
	 * This keeps track of the active content viewer, which may be either one of the viewers in the pages or the content outline viewer.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected Viewer currentViewer;

	/**
	 * This listens to which ever viewer is active.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected ISelectionChangedListener selectionChangedListener;

	/**
	 * This keeps track of all the {@link org.eclipse.jface.viewers.ISelectionChangedListener}s that are listening to this editor.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected Collection selectionChangedListeners = new ArrayList();

	/**
	 * This keeps track of the selection of the editor as a whole.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected ISelection editorSelection = StructuredSelection.EMPTY;

	/**
	 * The MarkerHelper is responsible for creating workspace resource markers presented
	 * in Eclipse's Problems View.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected MarkerHelper markerHelper = new EditUIMarkerHelper();

	//Genarch
	private List<String> removedElements = new ArrayList<String>();

	/**
	 * This listens for when the outline becomes active
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected IPartListener partListener =
		new IPartListener() {
		public void partActivated(IWorkbenchPart p) {
			if (p instanceof ContentOutline) {
				if (((ContentOutline)p).getCurrentPage() == contentOutlinePage) {
					getActionBarContributor().setActiveEditor(ConfigurationEditor.this);

					setCurrentViewer(contentOutlineViewer);
				}
			}
			else if (p instanceof PropertySheet) {
				if (((PropertySheet)p).getCurrentPage() == propertySheetPage) {
					getActionBarContributor().setActiveEditor(ConfigurationEditor.this);
					handleActivate();
				}
			}
			else if (p == ConfigurationEditor.this) {
				handleActivate();
			}
		}
		public void partBroughtToTop(IWorkbenchPart p) {
		}
		public void partClosed(IWorkbenchPart p) {
		}
		public void partDeactivated(IWorkbenchPart p) {
		}
		public void partOpened(IWorkbenchPart p) {
		}
	};

	/**
	 * Resources that have been removed since last activation.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected Collection removedResources = new ArrayList();

	/**
	 * Resources that have been changed since last activation.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected Collection changedResources = new ArrayList();

	/**
	 * Resources that have been saved.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected Collection savedResources = new ArrayList();

	/**
	 * Map to store the diagnostic associated with a resource.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected Map resourceToDiagnosticMap = new LinkedHashMap();

	/**
	 * Controls whether the problem indication should be updated.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected boolean updateProblemIndication = true;

	//Genarch	
	private IProject project;

	private ArchitectureModelUtil architectureModelUtil;

	private Project fmpProject;

	/**
	 * Adapter used to update the problem indication when resources are demanded loaded.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected EContentAdapter problemIndicationAdapter = 
		new EContentAdapter() {
		public void notifyChanged(Notification notification) {
			if (notification.getNotifier() instanceof Resource) {
				switch (notification.getFeatureID(Resource.class)) {
				case Resource.RESOURCE__IS_LOADED:
				case Resource.RESOURCE__ERRORS:
				case Resource.RESOURCE__WARNINGS: {
					Resource resource = (Resource)notification.getNotifier();
					Diagnostic diagnostic = analyzeResourceProblems((Resource)notification.getNotifier(), null);
					if (diagnostic.getSeverity() != Diagnostic.OK) {
						resourceToDiagnosticMap.put(resource, diagnostic);
					}
					else {
						resourceToDiagnosticMap.remove(resource);
					}

					if (updateProblemIndication) {
						getSite().getShell().getDisplay().asyncExec
						(new Runnable() {
							public void run() {
								updateProblemIndication();
							}
						});
					}
				}
				}
			}
			else {
				super.notifyChanged(notification);
			}
		}

		protected void setTarget(Resource target) {
			basicSetTarget(target);
		}

		protected void unsetTarget(Resource target) {
			basicUnsetTarget(target);
		}
	};

	protected EContentAdapter elementChangeAdapter = 
		new EContentAdapter() {
		public void notifyChanged(Notification notification) {
			int featureId = notification.getFeatureID(MappingEntity.class);
			int type = notification.getEventType();		 

			MappingEntity configurationEntity;

			if( type == Notification.REMOVE ) {
				if ( notification.getOldValue() instanceof MappingEntity ) {
					configurationEntity = (MappingEntity)notification.getOldValue();

					if ( configurationEntity instanceof ConfigurationComponent ) {
						ConfigurationComponent configurationComponent = (ConfigurationComponent)configurationEntity;
						List classes = configurationComponent.getClasses();

						for ( int x = 0; x < classes.size(); x++ ) {
							ConfigurationClass configurationClass = (ConfigurationClass)classes.get(x);			    
							removedElements.add(architectureModelUtil.element(configurationClass.getPath()).getPath());
						}

						List aspects = configurationComponent.getAspects();

						for ( int x = 0; x < aspects.size(); x++ ) {
							ConfigurationAspect configurationAspect = (ConfigurationAspect)aspects.get(x);			    
							removedElements.add(architectureModelUtil.element(configurationAspect.getPath()).getPath());
						}			
					} else {
						Path configurationEntityPath = new Path(configurationEntity.getPath());
						String fileExtension = configurationEntityPath.getFileExtension();
						if ( "java".equals(fileExtension) || "aj".equals(fileExtension) ) {
							//The annotations will be removed on the model saving.
							removedElements.add(architectureModelUtil.element(configurationEntity.getPath()).getPath());
						}
					}		    
				}
			}
		}		
	};	  

	/**
	 * This listens for workspace changes.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected IResourceChangeListener resourceChangeListener =
		new IResourceChangeListener() {
		public void resourceChanged(IResourceChangeEvent event) {
			// Only listening to these.
			// if (event.getType() == IResourceDelta.POST_CHANGE)
			{
				IResourceDelta delta = event.getDelta();
				try {
					class ResourceDeltaVisitor implements IResourceDeltaVisitor {
						protected ResourceSet resourceSet = editingDomain.getResourceSet();
						protected Collection changedResources = new ArrayList();
						protected Collection removedResources = new ArrayList();

						public boolean visit(IResourceDelta delta) {
							if (delta.getFlags() != IResourceDelta.MARKERS &&
									delta.getResource().getType() == IResource.FILE) {
								if ((delta.getKind() & (IResourceDelta.CHANGED | IResourceDelta.REMOVED)) != 0) {
									Resource resource = resourceSet.getResource(URI.createURI(delta.getFullPath().toString()), false);
									if (resource != null) {
										if ((delta.getKind() & IResourceDelta.REMOVED) != 0) {
											removedResources.add(resource);
										}
										else if (!savedResources.remove(resource)) {
											changedResources.add(resource);
										}
									}
								}
							}

							return true;
						}

						public Collection getChangedResources() {
							return changedResources;
						}

						public Collection getRemovedResources() {
							return removedResources;
						}
					}

					ResourceDeltaVisitor visitor = new ResourceDeltaVisitor();
					delta.accept(visitor);

					if (!visitor.getRemovedResources().isEmpty()) {
						removedResources.addAll(visitor.getRemovedResources());
						if (!isDirty()) {
							getSite().getShell().getDisplay().asyncExec
							(new Runnable() {
								public void run() {
									getSite().getPage().closeEditor(ConfigurationEditor.this, false);
									ConfigurationEditor.this.dispose();
								}
							});
						}
					}

					if (!visitor.getChangedResources().isEmpty()) {
						changedResources.addAll(visitor.getChangedResources());
						if (getSite().getPage().getActiveEditor() == ConfigurationEditor.this) {
							getSite().getShell().getDisplay().asyncExec
							(new Runnable() {
								public void run() {
									handleActivate();
								}
							});
						}
					}
				}
				catch (CoreException exception) {
					ConfigurationMetaModelEditPlugin.INSTANCE.log(exception);
				}
			}
		}
	};

	/**
	 * Handles activation of the editor or it's associated views.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected void handleActivate() {
		// Recompute the read only state.
		//
		if (editingDomain.getResourceToReadOnlyMap() != null) {
			editingDomain.getResourceToReadOnlyMap().clear();

			// Refresh any actions that may become enabled or disabled.
			//
			setSelection(getSelection());
		}

		if (!removedResources.isEmpty()) {
			if (handleDirtyConflict()) {
				getSite().getPage().closeEditor(ConfigurationEditor.this, false);
				ConfigurationEditor.this.dispose();
			}
			else {
				removedResources.clear();
				changedResources.clear();
				savedResources.clear();
			}
		}
		else if (!changedResources.isEmpty()) {
			changedResources.removeAll(savedResources);
			handleChangedResources();
			changedResources.clear();
			savedResources.clear();
		}
	}

	/**
	 * Handles what to do with changed resources on activation.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected void handleChangedResources() {
		if (!changedResources.isEmpty() && (!isDirty() || handleDirtyConflict())) {
			editingDomain.getCommandStack().flush();

			updateProblemIndication = false;
			for (Iterator i = changedResources.iterator(); i.hasNext(); ) {
				Resource resource = (Resource)i.next();
				if (resource.isLoaded()) {
					resource.unload();
					try {
						resource.load(Collections.EMPTY_MAP);
					}
					catch (IOException exception) {
						if (!resourceToDiagnosticMap.containsKey(resource)) {
							resourceToDiagnosticMap.put(resource, analyzeResourceProblems(resource, exception));
						}
					}
				}
			}
			updateProblemIndication = true;
			updateProblemIndication();
		}
	}

	/**
	 * Updates the problems indication with the information described in the specified diagnostic.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected void updateProblemIndication() {
		if (updateProblemIndication) {
			BasicDiagnostic diagnostic =
				new BasicDiagnostic
				(Diagnostic.OK,
						"br.pucrio.inf.les.genarch",
						0,
						null,
						new Object [] { editingDomain.getResourceSet() });
			for (Iterator i = resourceToDiagnosticMap.values().iterator(); i.hasNext(); ) {
				Diagnostic childDiagnostic = (Diagnostic)i.next();
				if (childDiagnostic.getSeverity() != Diagnostic.OK) {
					diagnostic.add(childDiagnostic);
				}
			}

			int lastEditorPage = getPageCount() - 1;
			if (lastEditorPage >= 0 && getEditor(lastEditorPage) instanceof ProblemEditorPart) {
				((ProblemEditorPart)getEditor(lastEditorPage)).setDiagnostic(diagnostic);
				if (diagnostic.getSeverity() != Diagnostic.OK) {
					setActivePage(lastEditorPage);
				}
			}
			else if (diagnostic.getSeverity() != Diagnostic.OK) {
				ProblemEditorPart problemEditorPart = new ProblemEditorPart();
				problemEditorPart.setDiagnostic(diagnostic);
				problemEditorPart.setMarkerHelper(markerHelper);
				try {
					addPage(++lastEditorPage, problemEditorPart, getEditorInput());
					setPageText(lastEditorPage, problemEditorPart.getPartName());
					setActivePage(lastEditorPage);
					showTabs();
				}
				catch (PartInitException exception) {
					ConfigurationMetaModelEditPlugin.INSTANCE.log(exception);
				}
			}

			if (markerHelper.hasMarkers(editingDomain.getResourceSet())) {
				markerHelper.deleteMarkers(editingDomain.getResourceSet());
				if (diagnostic.getSeverity() != Diagnostic.OK) {
					try {
						markerHelper.createMarkers(diagnostic);
					}
					catch (CoreException exception) {
						ConfigurationMetaModelEditPlugin.INSTANCE.log(exception);
					}
				}
			}
		}
	}

	/**
	 * Shows a dialog that asks if conflicting changes should be discarded.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected boolean handleDirtyConflict() {
		return
		MessageDialog.openQuestion
		(getSite().getShell(),
				getString("_UI_FileConflict_label"),
				getString("_WARN_FileConflict"));
	}

	/**
	 * This creates a model editor.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public ConfigurationEditor() {
		super();

		// Create an adapter factory that yields item providers.
		//
		List factories = new ArrayList();
		factories.add(new ResourceItemProviderAdapterFactory());
		factories.add(new ConfigurationItemProviderAdapterFactory());
		factories.add(new ReflectiveItemProviderAdapterFactory());

		adapterFactory = new ComposedAdapterFactory(factories);

		// Create the command stack that will notify this editor as commands are executed.
		//
		BasicCommandStack commandStack = new BasicCommandStack();

		// Add a listener to set the most recent command's affected objects to be the selection of the viewer with focus.
		//
		commandStack.addCommandStackListener
		(new CommandStackListener() {
			public void commandStackChanged(final EventObject event) {
				getContainer().getDisplay().asyncExec
				(new Runnable() {
					public void run() {
						firePropertyChange(IEditorPart.PROP_DIRTY);

						// Try to select the affected objects.
						//
						Command mostRecentCommand = ((CommandStack)event.getSource()).getMostRecentCommand();
						if (mostRecentCommand != null) {
							setSelectionToViewer(mostRecentCommand.getAffectedObjects());
						}
						if (propertySheetPage != null && !propertySheetPage.getControl().isDisposed()) {
							propertySheetPage.refresh();
						}
					}
				});
			}
		});

		// Create the editing domain with a special command stack.
		//
		editingDomain = new AdapterFactoryEditingDomain(adapterFactory, commandStack, new HashMap());
	}

	/**
	 * This is here for the listener to be able to call it.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected void firePropertyChange(int action) {
		super.firePropertyChange(action);
	}

	public int getPageActive() {
		return getActivePage();
	}

	/**
	 * This sets the selection into whichever viewer is active.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setSelectionToViewer(Collection collection) {
		final Collection theSelection = collection;
		// Make sure it's okay.
		//
		if (theSelection != null && !theSelection.isEmpty()) {
			// I don't know if this should be run this deferred
			// because we might have to give the editor a chance to process the viewer update events
			// and hence to update the views first.
			//
			//
			Runnable runnable =
				new Runnable() {
				public void run() {
					// Try to select the items in the current content viewer of the editor.
					//
					if (currentViewer != null) {
						currentViewer.setSelection(new StructuredSelection(theSelection.toArray()), true);
					}
				}
			};
			runnable.run();
		}
	}

	/**
	 * This returns the editing domain as required by the {@link IEditingDomainProvider} interface.
	 * This is important for implementing the static methods of {@link AdapterFactoryEditingDomain}
	 * and for supporting {@link org.eclipse.emf.edit.ui.action.CommandAction}.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public EditingDomain getEditingDomain() {
		return editingDomain;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public class ReverseAdapterFactoryContentProvider extends AdapterFactoryContentProvider {
		public ReverseAdapterFactoryContentProvider(AdapterFactory adapterFactory) {
			super(adapterFactory);
		}

		public Object [] getElements(Object object) {
			Object parent = super.getParent(object);
			return (parent == null ? Collections.EMPTY_SET : Collections.singleton(parent)).toArray();
		}

		public Object [] getChildren(Object object) {
			Object parent = super.getParent(object);
			return (parent == null ? Collections.EMPTY_SET : Collections.singleton(parent)).toArray();
		}

		public boolean hasChildren(Object object) {
			Object parent = super.getParent(object);
			return parent != null;
		}

		public Object getParent(Object object) {
			return null;
		}
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setCurrentViewerPane(ViewerPane viewerPane) {
		if (currentViewerPane != viewerPane) {
			if (currentViewerPane != null) {
				currentViewerPane.showFocus(false);
			}
			currentViewerPane = viewerPane;
		}
		setCurrentViewer(currentViewerPane.getViewer());
	}

	/**
	 * This makes sure that one content viewer, either for the current page or the outline view, if it has focus,
	 * is the current one.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setCurrentViewer(Viewer viewer) {
		// If it is changing...
		//
		if (currentViewer != viewer) {
			if (selectionChangedListener == null) {
				// Create the listener on demand.
				//
				selectionChangedListener =
					new ISelectionChangedListener() {
					// This just notifies those things that are affected by the section.
					//
					public void selectionChanged(SelectionChangedEvent selectionChangedEvent) {
						setSelection(selectionChangedEvent.getSelection());
					}
				};
			}

			// Stop listening to the old one.
			//
			if (currentViewer != null) {
				currentViewer.removeSelectionChangedListener(selectionChangedListener);
			}

			// Start listening to the new one.
			//
			if (viewer != null) {
				viewer.addSelectionChangedListener(selectionChangedListener);
			}

			// Remember it.
			//
			currentViewer = viewer;

			// Set the editors selection based on the current viewer's selection.
			//
			setSelection(currentViewer == null ? StructuredSelection.EMPTY : currentViewer.getSelection());
		}
	}

	/**
	 * This returns the viewer as required by the {@link IViewerProvider} interface.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Viewer getViewer() {
		return currentViewer;
	}

	/**
	 * This creates a context menu for the viewer and adds a listener as well registering the menu for extension.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected void createContextMenuFor(StructuredViewer viewer) {
		MenuManager contextMenu = new MenuManager("#PopUp");
		contextMenu.add(new Separator("additions"));
		contextMenu.setRemoveAllWhenShown(true);
		contextMenu.addMenuListener(this);
		Menu menu = contextMenu.createContextMenu(viewer.getControl());
		viewer.getControl().setMenu(menu);
		/*getSite().registerContextMenu(contextMenu, viewer);

	int dndOperations = DND.DROP_COPY | DND.DROP_MOVE | DND.DROP_LINK;
	Transfer[] transfers = new Transfer[] { LocalTransfer.getInstance() };
	viewer.addDragSupport(dndOperations, transfers, new ViewerDragAdapter(viewer));
	viewer.addDropSupport(dndOperations, transfers, new EditingDomainViewerDropAdapter(editingDomain, viewer));*/
	}

	/**
	 * This is the method called to load a resource into the editing domain's resource set based on the editor's input.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void createModel() {
		// Assumes that the input is a file object.
		//
		IFileEditorInput modelFile = (IFileEditorInput)getEditorInput();
		URI resourceURI = URI.createPlatformResourceURI(modelFile.getFile().getFullPath().toString());;
		Exception exception = null;
		Resource resource = null;
		try {
			// Load the resource through the editing domain.
			//
			resource = editingDomain.getResourceSet().getResource(resourceURI, true);
		}
		catch (Exception e) {
			exception = e;
			resource = editingDomain.getResourceSet().getResource(resourceURI, false);
		}

		Diagnostic diagnostic = analyzeResourceProblems(resource, exception);
		if (diagnostic.getSeverity() != Diagnostic.OK) {
			resourceToDiagnosticMap.put(resource,  analyzeResourceProblems(resource, exception));
		}
		editingDomain.getResourceSet().eAdapters().add(problemIndicationAdapter);
		editingDomain.getResourceSet().eAdapters().add(elementChangeAdapter);

		project = modelFile.getFile().getProject();

		GenarchProjectConfigurationFile genarchProjectConfigurationFile = GenarchProjectConfigurationFile.open(project);
		this.architectureModelUtil = new ArchitectureModelUtil(project);

		FmpExternalLoader externalLoader = new FmpExternalLoader();
		externalLoader.load(project.getFile(genarchProjectConfigurationFile.getFeatureModelPath()));					
		EList resourceList = externalLoader.getResources();					
		FmpResourceImpl fmpResource = (FmpResourceImpl)resourceList.get(0);		
		this.fmpProject = (Project)fmpResource.getAllContents().next(); 
	}

	/**
	 * Returns a dignostic describing the errors and warnings listed in the resource
	 * and the specified exception (if any).
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Diagnostic analyzeResourceProblems(Resource resource, Exception exception) {
		if (!resource.getErrors().isEmpty() || !resource.getWarnings().isEmpty()) {
			BasicDiagnostic basicDiagnostic =
				new BasicDiagnostic
				(Diagnostic.ERROR,
						"br.pucrio.inf.les.genarch",
						0,
						getString("_UI_CreateModelError_message", resource.getURI()),
						new Object [] { exception == null ? (Object)resource : exception });
			basicDiagnostic.merge(EcoreUtil.computeDiagnostic(resource, true));
			return basicDiagnostic;
		}
		else if (exception != null) {
			return
			new BasicDiagnostic
			(Diagnostic.ERROR,
					"br.pucrio.inf.les.genarch",
					0,
					getString("_UI_CreateModelError_message", resource.getURI()),
					new Object[] { exception });
		}
		else {
			return Diagnostic.OK_INSTANCE;
		}
	}

	/**
	 * This is the method used by the framework to install your own controls.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void createPages() {
		// Creates the model from the editor input
		//
		createModel();

		// Only creates the other pages if there is something that can be edited
		//
		if (!getEditingDomain().getResourceSet().getResources().isEmpty() &&
				!((Resource)getEditingDomain().getResourceSet().getResources().get(0)).getContents().isEmpty()) {
			// Create a page for the selection tree view.
			//
			{
				ViewerPane viewerPane =
					new ViewerPane(getSite().getPage(), ConfigurationEditor.this) {
					public Viewer createViewer(Composite composite) {
						Tree tree = new Tree(composite, SWT.MULTI);
						TreeViewer newTreeViewer = new TreeViewer(tree);
						return newTreeViewer;
					}
					public void requestActivation() {
						super.requestActivation();
						setCurrentViewerPane(this);
					}
				};
				viewerPane.createControl(getContainer());

				selectionViewer = (TreeViewer)viewerPane.getViewer();
				selectionViewer.setContentProvider(new AdapterFactoryContentProvider(adapterFactory));

				selectionViewer.setLabelProvider(new AdapterFactoryLabelProvider(adapterFactory));

				Resource resource = (Resource)editingDomain.getResourceSet().getResources().get(0);
				Configuration configuration = (Configuration)resource.getContents().get(0);

				selectionViewer.setInput(new ProxyItemProvider(getAdapterFactory(),configuration, configuration.getMappingRelationships()));
				viewerPane.setTitle(configuration.getMappingRelationships());

				new AdapterFactoryTreeEditor(selectionViewer.getTree(), adapterFactory);

				createContextMenuFor(selectionViewer);
				int pageIndex = addPage(viewerPane.getControl());
				setPageText(pageIndex,"Mapping Relationships");
			}			
			// Create a page for the parent tree view.
			//
			/*{
                                ViewerPane viewerPane =
                                        new ViewerPane(getSite().getPage(), ConfigurationEditor.this) {
                                                public Viewer createViewer(Composite composite) {
                                                        Tree tree = new Tree(composite, SWT.MULTI);
                                                        TreeViewer newTreeViewer = new TreeViewer(tree);
                                                        return newTreeViewer;
                                                }
                                                public void requestActivation() {
                                                        super.requestActivation();
                                                        setCurrentViewerPane(this);
                                                }
                                        };
                                viewerPane.createControl(getContainer());

                                parentViewer = (TreeViewer)viewerPane.getViewer();
                                parentViewer.setAutoExpandLevel(30);
                                parentViewer.setContentProvider(new ReverseAdapterFactoryContentProvider(adapterFactory));
                                parentViewer.setLabelProvider(new AdapterFactoryLabelProvider(adapterFactory));

                                createContextMenuFor(parentViewer);
                                int pageIndex = addPage(viewerPane.getControl());
                                setPageText(pageIndex, getString("_UI_ParentPage_label"));
                        }

                        // This is the page for the list viewer
                        //
                        {
                                ViewerPane viewerPane =
                                        new ViewerPane(getSite().getPage(), ConfigurationEditor.this) {
                                                public Viewer createViewer(Composite composite) {
                                                        return new ListViewer(composite);
                                                }
                                                public void requestActivation() {
                                                        super.requestActivation();
                                                        setCurrentViewerPane(this);
                                                }
                                        };
                                viewerPane.createControl(getContainer());
                                listViewer = (ListViewer)viewerPane.getViewer();
                                listViewer.setContentProvider(new AdapterFactoryContentProvider(adapterFactory));
                                listViewer.setLabelProvider(new AdapterFactoryLabelProvider(adapterFactory));

                                createContextMenuFor(listViewer);
                                int pageIndex = addPage(viewerPane.getControl());
                                setPageText(pageIndex, getString("_UI_ListPage_label"));
                        }

                        // This is the page for the tree viewer
                        //
                        {
                                ViewerPane viewerPane =
                                        new ViewerPane(getSite().getPage(), ConfigurationEditor.this) {
                                                public Viewer createViewer(Composite composite) {
                                                        return new TreeViewer(composite);
                                                }
                                                public void requestActivation() {
                                                        super.requestActivation();
                                                        setCurrentViewerPane(this);
                                                }
                                        };
                                viewerPane.createControl(getContainer());
                                treeViewer = (TreeViewer)viewerPane.getViewer();
                                treeViewer.setContentProvider(new AdapterFactoryContentProvider(adapterFactory));
                                treeViewer.setLabelProvider(new AdapterFactoryLabelProvider(adapterFactory));

                                new AdapterFactoryTreeEditor(treeViewer.getTree(), adapterFactory);

                                createContextMenuFor(treeViewer);
                                int pageIndex = addPage(viewerPane.getControl());
                                setPageText(pageIndex, getString("_UI_TreePage_label"));
                        }

                        // This is the page for the table viewer.
                        //
                        {
                                ViewerPane viewerPane =
                                        new ViewerPane(getSite().getPage(), ConfigurationEditor.this) {
                                                public Viewer createViewer(Composite composite) {
                                                        return new TableViewer(composite);
                                                }
                                                public void requestActivation() {
                                                        super.requestActivation();
                                                        setCurrentViewerPane(this);
                                                }
                                        };
                                viewerPane.createControl(getContainer());
                                tableViewer = (TableViewer)viewerPane.getViewer();

                                Table table = tableViewer.getTable();
                                TableLayout layout = new TableLayout();
                                table.setLayout(layout);
                                table.setHeaderVisible(true);
                                table.setLinesVisible(true);

                                TableColumn objectColumn = new TableColumn(table, SWT.NONE);
                                layout.addColumnData(new ColumnWeightData(3, 100, true));
                                objectColumn.setText(getString("_UI_ObjectColumn_label"));
                                objectColumn.setResizable(true);

                                TableColumn selfColumn = new TableColumn(table, SWT.NONE);
                                layout.addColumnData(new ColumnWeightData(2, 100, true));
                                selfColumn.setText(getString("_UI_SelfColumn_label"));
                                selfColumn.setResizable(true);

                                tableViewer.setColumnProperties(new String [] {"a", "b"});
                                tableViewer.setContentProvider(new AdapterFactoryContentProvider(adapterFactory));
                                tableViewer.setLabelProvider(new AdapterFactoryLabelProvider(adapterFactory));

                                createContextMenuFor(tableViewer);
                                int pageIndex = addPage(viewerPane.getControl());
                                setPageText(pageIndex, getString("_UI_TablePage_label"));
                        }

                        // This is the page for the table tree viewer.
                        //
                        {
                                ViewerPane viewerPane =
                                        new ViewerPane(getSite().getPage(), ConfigurationEditor.this) {
                                                public Viewer createViewer(Composite composite) {
                                                        return new TreeViewer(composite);
                                                }
                                                public void requestActivation() {
                                                        super.requestActivation();
                                                        setCurrentViewerPane(this);
                                                }
                                        };
                                viewerPane.createControl(getContainer());

                                treeViewerWithColumns = (TreeViewer)viewerPane.getViewer();

                                Tree tree = treeViewerWithColumns.getTree();
                                tree.setLayoutData(new FillLayout());
                                tree.setHeaderVisible(true);
                                tree.setLinesVisible(true);

                                TreeColumn objectColumn = new TreeColumn(tree, SWT.NONE);
                                objectColumn.setText(getString("_UI_ObjectColumn_label"));
                                objectColumn.setResizable(true);
                                objectColumn.setWidth(250);

                                TreeColumn selfColumn = new TreeColumn(tree, SWT.NONE);
                                selfColumn.setText(getString("_UI_SelfColumn_label"));
                                selfColumn.setResizable(true);
                                selfColumn.setWidth(200);

                                treeViewerWithColumns.setColumnProperties(new String [] {"a", "b"});
                                treeViewerWithColumns.setContentProvider(new AdapterFactoryContentProvider(adapterFactory));
                                treeViewerWithColumns.setLabelProvider(new AdapterFactoryLabelProvider(adapterFactory));

                                createContextMenuFor(treeViewerWithColumns);
                                int pageIndex = addPage(viewerPane.getControl());
                                setPageText(pageIndex, getString("_UI_TreeWithColumnsPage_label"));
                        }*/

			setActivePage(0);
		}

		// Ensures that this editor will only display the page's tab
		// area if there are more than one page
		//
		getContainer().addControlListener
		(new ControlAdapter() {
			boolean guard = false;
			public void controlResized(ControlEvent event) {
				if (!guard) {
					guard = true;
					hideTabs();
					guard = false;
				}
			}
		});

		updateProblemIndication();
	}

	/**
	 * If there is just one page in the multi-page editor part,
	 * this hides the single tab at the bottom.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected void hideTabs() {
		if (getPageCount() <= 1) {
			setPageText(0, "");
			if (getContainer() instanceof CTabFolder) {
				((CTabFolder)getContainer()).setTabHeight(1);
				Point point = getContainer().getSize();
				getContainer().setSize(point.x, point.y + 6);
			}
		}
	}

	/**
	 * If there is more than one page in the multi-page editor part,
	 * this shows the tabs at the bottom.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected void showTabs() {
		if (getPageCount() > 1) {
			setPageText(0, getString("_UI_SelectionPage_label"));
			if (getContainer() instanceof CTabFolder) {
				((CTabFolder)getContainer()).setTabHeight(SWT.DEFAULT);
				Point point = getContainer().getSize();
				getContainer().setSize(point.x, point.y - 6);
			}
		}
	}

	/**
	 * This is used to track the active viewer.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected void pageChange(int pageIndex) {
		super.pageChange(pageIndex);

		if (contentOutlinePage != null) {
			handleContentOutlineSelection(contentOutlinePage.getSelection());
			setContentOutlineViewerInput();
		}
	}

	protected void setContentOutlineViewerInput() {
		Resource resource = (Resource)editingDomain.getResourceSet().getResources().get(0);
		Configuration configuration = (Configuration)resource.getContents().get(0);

		if ( getActivePage() == 0 ) {
			contentOutlineViewer.setInput(configuration.getMappingRelationships());
		}
	}

	/**
	 * This is how the framework determines which interfaces we implement.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Object getAdapter(Class key) {
		if (key.equals(IContentOutlinePage.class)) {
			return showOutlineView() ? getContentOutlinePage() : null;
		}
		else if (key.equals(IPropertySheetPage.class)) {
			return getPropertySheetPage();
		}
		else if (key.equals(IGotoMarker.class)) {
			return this;
		}
		else {
			return super.getAdapter(key);
		}
	}

	/**
	 * This accesses a cached version of the content outliner.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public IContentOutlinePage getContentOutlinePage() {
		if (contentOutlinePage == null) {
			// The content outline is just a tree.
			//
			class MyContentOutlinePage extends ContentOutlinePage {
				public void createControl(Composite parent) {
					super.createControl(parent);
					contentOutlineViewer = getTreeViewer();
					contentOutlineViewer.addSelectionChangedListener(this);

					// Set up the tree viewer.
					//
					contentOutlineViewer.setContentProvider(new AdapterFactoryContentProvider(adapterFactory));
					contentOutlineViewer.setLabelProvider(new AdapterFactoryLabelProvider(adapterFactory));

					setContentOutlineViewerInput();

					// Make sure our popups work.
					//
					createContextMenuFor(contentOutlineViewer);

					if (!editingDomain.getResourceSet().getResources().isEmpty()) {
						// Select the root object in the view.
						//
						ArrayList selection = new ArrayList();
						selection.add(editingDomain.getResourceSet().getResources().get(0));
						contentOutlineViewer.setSelection(new StructuredSelection(selection), true);
					}
				}

				public void makeContributions(IMenuManager menuManager, IToolBarManager toolBarManager, IStatusLineManager statusLineManager) {
					super.makeContributions(menuManager, toolBarManager, statusLineManager);
					contentOutlineStatusLineManager = statusLineManager;
				}

				public void setActionBars(IActionBars actionBars) {
					super.setActionBars(actionBars);
					getActionBarContributor().shareGlobalActions(this, actionBars);
				}
			}

			contentOutlinePage = new MyContentOutlinePage();

			// Listen to selection so that we can handle it is a special way.
			//
			contentOutlinePage.addSelectionChangedListener
			(new ISelectionChangedListener() {
				// This ensures that we handle selections correctly.
				//
				public void selectionChanged(SelectionChangedEvent event) {
					handleContentOutlineSelection(event.getSelection());
				}
			});
		}

		return contentOutlinePage;
	}

	/**
	 * This accesses a cached version of the property sheet.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public IPropertySheetPage getPropertySheetPage() {
		if (propertySheetPage == null) {
			propertySheetPage =
				new ExtendedPropertySheetPage(editingDomain) {
				public void setSelectionToViewer(List selection) {
					ConfigurationEditor.this.setSelectionToViewer(selection);
					ConfigurationEditor.this.setFocus();
				}

				public void setActionBars(IActionBars actionBars) {
					super.setActionBars(actionBars);
					getActionBarContributor().shareGlobalActions(this, actionBars);
				}
			};
			propertySheetPage.setPropertySourceProvider(new AdapterFactoryContentProvider(adapterFactory));
		}

		return propertySheetPage;
	}

	/**
	 * This deals with how we want selection in the outliner to affect the other views.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void handleContentOutlineSelection(ISelection selection) {
		if (currentViewerPane != null && !selection.isEmpty() && selection instanceof IStructuredSelection) {
			Iterator selectedElements = ((IStructuredSelection)selection).iterator();
			if (selectedElements.hasNext()) {
				// Get the first selected element.
				//
				Object selectedElement = selectedElements.next();

				// If it's the selection viewer, then we want it to select the same selection as this selection.
				//
				if (currentViewerPane.getViewer() == selectionViewer) {
					ArrayList selectionList = new ArrayList();
					selectionList.add(selectedElement);
					while (selectedElements.hasNext()) {
						selectionList.add(selectedElements.next());
					}

					// Set the selection to the widget.
					//
					selectionViewer.setSelection(new StructuredSelection(selectionList));
				}
				else {
					// Set the input to the widget.
					//
					if (currentViewerPane.getViewer().getInput() != selectedElement) {
						currentViewerPane.getViewer().setInput(selectedElement);
						currentViewerPane.setTitle(selectedElement);
					}
				}
			}
		}
	}

	/**
	 * This is for implementing {@link IEditorPart} and simply tests the command stack.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public boolean isDirty() {
		return ((BasicCommandStack)editingDomain.getCommandStack()).isSaveNeeded();
	}

	/**
	 * This is for implementing {@link IEditorPart} and simply saves the model file.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void doSave(IProgressMonitor progressMonitor) {
		// Do the work within an operation because this is a long running activity that modifies the workbench.
		//
		WorkspaceModifyOperation operation =
			new WorkspaceModifyOperation() {
			// This is the method that gets invoked when the operation runs.
			//
			public void execute(IProgressMonitor monitor) {
				// Save the resources to the file system.
				//
				boolean first = true;
				for (Iterator i = editingDomain.getResourceSet().getResources().iterator(); i.hasNext(); ) {
					Resource resource = (Resource)i.next();
					if ((first || !resource.getContents().isEmpty() || isPersisted(resource)) && !editingDomain.isReadOnly(resource)) {
						try {
							savedResources.add(resource);
							resource.save(Collections.EMPTY_MAP);
						}
						catch (Exception exception) {
							resourceToDiagnosticMap.put(resource, analyzeResourceProblems(resource, exception));
						}
						first = false;
					}
				}
								
				//Remove @Feature/@Features annotation from the removed elements 
				for ( String elementPath : removedElements ) {
					if ( "java".equals(new Path(elementPath).getFileExtension()) ) {
						JavaAnnotationUtil.removeFeatureAnnotations(project.getFile(elementPath));
					} else if ( "aj".equals(new Path(elementPath).getFileExtension()) ) {
						AspectAnnotationUtil.removeFeaturesAnnotation(project.getFile(elementPath));
					}
				}												
			}
		};

		updateProblemIndication = false;
		try {
			// This runs the options, and shows progress.
			//
			new ProgressMonitorDialog(getSite().getShell()).run(true, false, operation);

			// Refresh the necessary state.
			//
			((BasicCommandStack)editingDomain.getCommandStack()).saveIsDone();
			firePropertyChange(IEditorPart.PROP_DIRTY);
		}
		catch (Exception exception) {
			// Something went wrong that shouldn't.
			//
			ConfigurationMetaModelEditPlugin.INSTANCE.log(exception);
		}
		updateProblemIndication = true;
		updateProblemIndication();
	}

	/**
	 * This returns wether something has been persisted to the URI of the specified resource.
	 * The implementation uses the URI converter from the editor's resource set to try to open an input stream. 
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected boolean isPersisted(Resource resource) {
		boolean result = false;
		try {
			InputStream stream = editingDomain.getResourceSet().getURIConverter().createInputStream(resource.getURI());
			if (stream != null) {
				result = true;
				stream.close();
			}
		}
		catch (IOException e) {
		}
		return result;
	}

	/**
	 * This always returns true because it is not currently supported.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public boolean isSaveAsAllowed() {
		return true;
	}

	/**
	 * This also changes the editor's input.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void doSaveAs() {
		SaveAsDialog saveAsDialog= new SaveAsDialog(getSite().getShell());
		saveAsDialog.open();
		IPath path= saveAsDialog.getResult();
		if (path != null) {
			IFile file = ResourcesPlugin.getWorkspace().getRoot().getFile(path);
			if (file != null) {
				doSaveAs(URI.createPlatformResourceURI(file.getFullPath().toString()), new FileEditorInput(file));
			}
		}
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected void doSaveAs(URI uri, IEditorInput editorInput) {
		((Resource)editingDomain.getResourceSet().getResources().get(0)).setURI(uri);
		setInputWithNotify(editorInput);
		setPartName(editorInput.getName());
		IProgressMonitor progressMonitor =
			getActionBars().getStatusLineManager() != null ?
					getActionBars().getStatusLineManager().getProgressMonitor() :
						new NullProgressMonitor();
					doSave(progressMonitor);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void gotoMarker(IMarker marker) {
		try {
			if (marker.getType().equals(EValidator.MARKER)) {
				String uriAttribute = marker.getAttribute(EValidator.URI_ATTRIBUTE, null);
				if (uriAttribute != null) {
					URI uri = URI.createURI(uriAttribute);
					EObject eObject = editingDomain.getResourceSet().getEObject(uri, true);
					if (eObject != null) {
						setSelectionToViewer(Collections.singleton(editingDomain.getWrapper(eObject)));
					}
				}
			}
		}
		catch (CoreException exception) {
			ConfigurationMetaModelEditPlugin.INSTANCE.log(exception);
		}
	}

	/**
	 * This is called during startup.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void init(IEditorSite site, IEditorInput editorInput) {
		setSite(site);
		setInputWithNotify(editorInput);
		setPartName(editorInput.getName());
		site.setSelectionProvider(this);
		site.getPage().addPartListener(partListener);
		ResourcesPlugin.getWorkspace().addResourceChangeListener(resourceChangeListener, IResourceChangeEvent.POST_CHANGE);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setFocus() {
		if (currentViewerPane != null) {
			currentViewerPane.setFocus();
		}
		else {
			getControl(getActivePage()).setFocus();
		}
	}

	/**
	 * This implements {@link org.eclipse.jface.viewers.ISelectionProvider}.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void addSelectionChangedListener(ISelectionChangedListener listener) {
		selectionChangedListeners.add(listener);
	}

	/**
	 * This implements {@link org.eclipse.jface.viewers.ISelectionProvider}.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void removeSelectionChangedListener(ISelectionChangedListener listener) {
		selectionChangedListeners.remove(listener);
	}

	/**
	 * This implements {@link org.eclipse.jface.viewers.ISelectionProvider} to return this editor's overall selection.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public ISelection getSelection() {
		return editorSelection;
	}

	/**
	 * This implements {@link org.eclipse.jface.viewers.ISelectionProvider} to set this editor's overall selection.
	 * Calling this result will notify the listeners.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setSelection(ISelection selection) {
		editorSelection = selection;

		for (Iterator listeners = selectionChangedListeners.iterator(); listeners.hasNext(); ) {
			ISelectionChangedListener listener = (ISelectionChangedListener)listeners.next();
			listener.selectionChanged(new SelectionChangedEvent(this, selection));
		}
		setStatusLineManager(selection);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setStatusLineManager(ISelection selection) {
		IStatusLineManager statusLineManager = currentViewer != null && currentViewer == contentOutlineViewer ?
				contentOutlineStatusLineManager : getActionBars().getStatusLineManager();

		if (statusLineManager != null) {
			if (selection instanceof IStructuredSelection) {
				Collection collection = ((IStructuredSelection)selection).toList();
				switch (collection.size()) {
				case 0: {
					statusLineManager.setMessage(getString("_UI_NoObjectSelected"));
					break;
				}
				case 1: {
					String text = new AdapterFactoryItemDelegator(adapterFactory).getText(collection.iterator().next());
					statusLineManager.setMessage(getString("_UI_SingleObjectSelected", text));
					break;
				}
				default: {
					statusLineManager.setMessage(getString("_UI_MultiObjectSelected", Integer.toString(collection.size())));
					break;
				}
				}
			}
			else {
				statusLineManager.setMessage("");
			}
		}
	}

	/**
	 * This looks up a string in the plugin's plugin.properties file.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	private static String getString(String key) {
		return ConfigurationMetaModelEditPlugin.INSTANCE.getString(key);
	}

	/**
	 * This looks up a string in plugin.properties, making a substitution.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	private static String getString(String key, Object s1) {
		return ConfigurationMetaModelEditPlugin.INSTANCE.getString(key, new Object [] { s1 });
	}

	/**
	 * This implements {@link org.eclipse.jface.action.IMenuListener} to help fill the context menus with contributions from the Edit menu.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void menuAboutToShow(IMenuManager menuManager) {
		((IMenuListener)getEditorSite().getActionBarContributor()).menuAboutToShow(menuManager);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public EditingDomainActionBarContributor getActionBarContributor() {
		return (EditingDomainActionBarContributor)getEditorSite().getActionBarContributor();
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public IActionBars getActionBars() {
		return getActionBarContributor().getActionBars();
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public AdapterFactory getAdapterFactory() {
		return adapterFactory;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void dispose() {
		updateProblemIndication = false;

		ResourcesPlugin.getWorkspace().removeResourceChangeListener(resourceChangeListener);

		getSite().getPage().removePartListener(partListener);

		adapterFactory.dispose();

		if (getActionBarContributor().getActiveEditor() == this) {
			getActionBarContributor().setActiveEditor(null);
		}

		if (propertySheetPage != null) {
			propertySheetPage.dispose();
		}

		if (contentOutlinePage != null) {
			contentOutlinePage.dispose();
		}

		super.dispose();
	}

	/**
	 * Returns whether the outline view should be presented to the user.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected boolean showOutlineView() {
		return true;
	}
}
